@article{ZNSL_2006_338_a9,
     author = {A. S. Sivatski},
     title = {Nonexcellence of certain field extensions},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {213--226},
     publisher = {mathdoc},
     volume = {338},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2006_338_a9/}
}